Whistle glass



FIG. 1 is a top, front perspective view of a whistle glass showing mynew design;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a rear view of FIG. 1;

FIG. 4 is a side view of FIG. 1;

FIG. 5 is a top view of FIG. 1; and,

FIG. 6 is a bottom view of FIG. 1.

The broken lines in the drawing depict portions of the whistle glassthat form no part of the claimed design.

CLAIM The ornamental design for a whistle glass, as shown and described.